BR9712200A - Method for producing glycol - Google Patents

Method for producing glycol

Info

Publication number
BR9712200A
BR9712200A BR9712200-9A BR9712200A BR9712200A BR 9712200 A BR9712200 A BR 9712200A BR 9712200 A BR9712200 A BR 9712200A BR 9712200 A BR9712200 A BR 9712200A
Authority
BR
Brazil
Prior art keywords
glycol
hydroxyl compound
reactor
epoxide
compound
Prior art date
Application number
BR9712200-9A
Other languages
Portuguese (pt)
Inventor
Gary R Strickler
Joseph L Womack
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21833100&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9712200(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of BR9712200A publication Critical patent/BR9712200A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
    • C07C29/10—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of ethers, including cyclic ethers, e.g. oxiranes
    • C07C29/103—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of ethers, including cyclic ethers, e.g. oxiranes of cyclic ethers
    • C07C29/106—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of ethers, including cyclic ethers, e.g. oxiranes of cyclic ethers of oxiranes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
    • C07C29/10—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of ethers, including cyclic ethers, e.g. oxiranes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Epoxy Compounds (AREA)

Abstract

This invention relates to a method for producing glycols. Such a method is particularly useful for preparing ethylene glycol from ethylene oxide and water. The method of this invention is a synergistic combination of the process of evaporation, absorption, and reaction, combined to enhance reactions of yields for reactions of epoxides with compounds containing hydroxy functional groups. Such method comprises making glycol in an evaporation column reactor as follows: (a) feeding a hydroxy compound into the reactor; (b) feeding an epoxide into the reactor such that the epoxide compound is contacted with hydroxyl compound in a reaction zone under conditions such that substantially all of the epoxide reacts to form a product comprising a glycol which is dissolved in liquid hydroxyl compound; (c) removing the mixture of liquid hydroxyl compound and dissolved glycol away from the reaction zone; and (d) heating the mixture of liquid hydroxyl compound and dissolved glycol such that at least some of the hydroxyl compound is evaporated away from the glycol; and (e) condensing and refluxing the evaporated hydroxyl compound and combining it with the hydroxyl compound of Step (a). In one aspect of the invention, the epoxide feed described in Step (b) enter the reactor through at least two distinct ports within the reactor. In another aspect of this invention, the method is synergistically conducted in at least two sequential evaporation columns which together form a multiple effect evaporation column reactor.
BR9712200-9A 1996-10-04 1997-10-03 Method for producing glycol BR9712200A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2665996P 1996-10-04 1996-10-04
PCT/US1997/017936 WO1998014419A1 (en) 1996-10-04 1997-10-03 A method for producing glycols

Publications (1)

Publication Number Publication Date
BR9712200A true BR9712200A (en) 2002-07-16

Family

ID=21833100

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9712200-9A BR9712200A (en) 1996-10-04 1997-10-03 Method for producing glycol

Country Status (13)

Country Link
EP (1) EP0929503B1 (en)
JP (1) JP2001501624A (en)
KR (1) KR20000048902A (en)
CN (1) CN1100742C (en)
AT (1) ATE207050T1 (en)
AU (1) AU731453B2 (en)
BR (1) BR9712200A (en)
CA (1) CA2268158A1 (en)
DE (1) DE69707487T2 (en)
ES (1) ES2165589T3 (en)
ID (1) ID21570A (en)
PT (1) PT929503E (en)
WO (1) WO1998014419A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100413833C (en) * 2004-04-16 2008-08-27 中国石油化工股份有限公司上海石油化工研究院 Method for producing glycol by epoxy ethane hydration
DE602004019076D1 (en) * 2004-08-05 2009-03-05 Saudi Basic Ind Corp Process with a catalyst-coated heat exchanger
CN100343212C (en) * 2005-01-20 2007-10-17 中国寰球工程公司 Evaporation system for producing ethylene glycol
US7645906B2 (en) 2007-03-27 2010-01-12 Chevron Phillips Chemical Company Lp Graded catalyst bed for methyl mercaptan synthesis
US8053609B2 (en) * 2007-10-15 2011-11-08 Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg Solid catalyst useful for converting an alkylene oxide to an alkylene glycol
BRPI0923998A2 (en) * 2009-04-15 2016-01-26 Invista Tech Sarl method for treating perfluorosulfonic acid resin, perfluorosulfonic acid resin and process for making polyether glycol or copolyether glycol
KR101307060B1 (en) * 2011-10-17 2013-09-11 삼성토탈 주식회사 Preparation method for diethyleneglycol by using multiple feeding of raw materials
CN103709001B (en) * 2012-10-08 2016-05-11 中国石油化工股份有限公司 The method of Synthesis of Ethylene Glycol by Ethylene Oxide Hydration
CN102875331B (en) * 2012-10-28 2014-12-17 中国海洋大学 Heat pump reaction rectification technology for preparing glycol through hydration of epoxy ethane
CA3195635A1 (en) * 2020-10-15 2022-04-21 Sabic Global Technologies B.V. System and process for producing glycols

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165440A (en) * 1976-10-06 1979-08-21 Shell Oil Company Catalytic hydration of ethylene oxide to ethylene glycol

Also Published As

Publication number Publication date
DE69707487D1 (en) 2001-11-22
AU731453B2 (en) 2001-03-29
ID21570A (en) 1999-06-24
CN1100742C (en) 2003-02-05
EP0929503B1 (en) 2001-10-17
ATE207050T1 (en) 2001-11-15
EP0929503A1 (en) 1999-07-21
PT929503E (en) 2002-02-28
DE69707487T2 (en) 2002-04-11
AU4745897A (en) 1998-04-24
WO1998014419A1 (en) 1998-04-09
ES2165589T3 (en) 2002-03-16
CN1237953A (en) 1999-12-08
KR20000048902A (en) 2000-07-25
CA2268158A1 (en) 1998-04-09
JP2001501624A (en) 2001-02-06

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]